This seems a very good theory. The records were commissioned by Jin after all and no historian or country wants the one they made or built to be soiled or have it's reputation tarnished e.g Japan, China, Russia, Germany.

The invasion, I can look on in mild distaste, but a little understanding. Many people and lords never followed the advice of their capable advisers and led many men to their dooms. Cao Cao, Cao Pi, Liu Bei, Guan Yu, Lu Bu.

Cao Rui was a capable man who was a brilliant judge of character. I always wondered why he made Shuang regent, and maybe because he saw Shuang as the man who could retain the Cao control over Wei.

I've a brave warrior in my army. Shen Ai is his name, and he can slay this Hua Xiong.

Wei has no more famous commanders, Shen Ai takes lead of the vanguard!

Good men died young, several of the worst people live long. Doubt it is Karma based, more likely Pi, like his son, died due to an illness caught when invading Wu.

“You, are a rebellious son who abandoned his father. You are a cruel brigand who murdered his lord. How can Heaven and Earth put up with you for long? And unless you die soon, how can you face the sight of men?”